HOW: Find your “power stance”, or the stance you would set up in if you were told to jump as high as you can. This is your starting position. Drive your feet into the ground and “spread the ground”. Pull the slack out of the bar and then lift the barbell using your legs.
FEEL: You should feel all the muscles in your legs working, especially your posterior chain. Your back muscles will be working, but you shouldn’t feel like you are lifting with just your back.
COMPENSATION: Keep a neutral back during the entire lift.